LPC v4l-dvb mini-summit agenda

LPC v4l-dvb mini-summit agenda

[Hans Verkuil]

Hi guys,

I've tried to put together an initial agenda of points to discuss during
the mini-summit.

We have a room available all three days, so that makes life easier for us.

I assume that most people will want to attend at least the keynote speeches,
so I'm scheduling around that.

So Wednesday we start at 10:00 after the keynote (except for those attending
the audio track) and go on until 15:00 (yes, you are allowed to have lunch :-) ).

Thursday we can start at 9:00 until 16:00.

Friday starts with a V4L2 BoF followed by two v4l presentations, so we will
only have a session from 13:30 - 16:00. I suggest we use that to wrap up.

Of course, if someone is not directly involved in a particular topic, then
it's no problem to go to another session. But there is a lot to cover, so we
should try to stay focused. It is of course possible to continue in smaller
groups afterwards. As I said, we have the room to ourselves.

The main discussion points are these RFCs:

- V2.1 Media Controller RFC:
http://www.mail-archive.com/linux-media%40vger.kernel.org/msg09636.html

- Bus and data format negotiation (addresses open issue #3 of the MC RFC):
http://www.mail-archive.com/linux-media%40vger.kernel.org/msg09644.html

- Support for video timings at the input/output interface (aka support for HDTV):
http://www.mail-archive.com/davinci-linux-open-source%40linux.davincidsp.com/msg14814.html

- Allow bridge drivers to have better control over DVB frontend operations:
http://www.mail-archive.com/linux-media%40vger.kernel.org/msg09183.html

We have some other topics as well (in no particular order):

- mercurial vs git, how important is backwards compatibility to us?
- how to do events in V4L?
- is it possible to create a pool of buffers that we can pass around to
  various video nodes?
- others?

My plan is to use the Wednesday to start with the media controller, make sure
that everyone understands what it is and what it is not and perhaps look at
one embedded device to see how well it would work. The afternoon we can look
at some of the other topics.

I hope that on Thursday we can go over the media controller in more detail,
esp. with regards to other embedded devices, current and (if possible)
upcoming. Depending on the time we might look at some other topics in the
afternoon.

Friday is mostly wrap up and a discussion of any remaining topics.

I'm pretty sure that this plan will not survive reality, but at least it is
a start.

I have the following people on my list for this mini-summit.

Sergio Alberto Aguirre Rodriguez
Sakari Ailus
Hans de Goede
Devin Heitmueller
Vaibhav Hiremath
Magdalena Iovescu
Muralidharan Karicheri
Mike Krufky
Brandon Philips
Laurent Pinchart
Steven Toth
Andy Walls

Let me know if I missed someone, or if you are on the list, but won't be
attending this mini-summit.

Note that no final decisions will be taken during this summit. That can only
happen on the list. The main purpose is to look at these RFCs and try to
shoot holes in them. Are they generic enough? Powerful enough? Will they
support the hardware that I know of? What if anything is missed? Etc, etc.

Regards,

	Hans

-- 
Hans Verkuil - video4linux developer - sponsored by TANDBERG Telecom

Re: LPC v4l-dvb mini-summit agenda

[Michael Krufky]

On Tue, Sep 15, 2009 at 1:19 PM, Hans Verkuil <hverkuil@xs4all.nl> wrote:
> - Allow bridge drivers to have better control over DVB frontend operations:
> http://www.mail-archive.com/linux-media%40vger.kernel.org/msg09183.html

The RFC on the mailing list went well.  I did not intend on discussing
this further unless somebody has issue with it.  So far, it has
received a positive response and I intend to request merge at the
close of the 2.6.32 merge window (pushing upstream merge for 2.6.33)

I dont think this is necessary as a discussion topic, it is
self-explanatory and already been discussed on the list.

 I'd prefer that if anybody has comments, that they discuss this on
the mailing list NOW, rather than waiting for the conference.

Of course, I will be available to field any questions, but I do not
plan to attend the entire "mini-summit"

Regards,

Mike

Re: LPC v4l-dvb mini-summit agenda

[Brandon Philips]

On 19:19 Tue 15 Sep 2009, Hans Verkuil wrote:
> We have a room available all three days, so that makes life easier for us.
>
> I assume that most people will want to attend at least the keynote speeches,
> so I'm scheduling around that.

Thanks for organizing this. But, I have other priorities and things I
want to discuss during the conference. I don't think I can attend a
full three days.

> So Wednesday we start at 10:00 after the keynote (except for those
> attending the audio track) and go on until 15:00 (yes, you are
> allowed to have lunch :-) ).
> 
> Thursday we can start at 9:00 until 16:00.

I wish I had seen this sooner so we could have done something like the
Networking folks and met while LinuxCon was going on instead. I
thought the V4L meetup was going to be a regular BoF.

> Friday starts with a V4L2 BoF followed by two v4l presentations, so
> we will only have a session from 13:30 - 16:00. I suggest we use
> that to wrap up.

After dicussing this a bit Hans and I cut it down to a single 45
minute slot with each of us doing a 20 or so minutes.

> The main discussion points are these RFCs:
> 
> - V2.1 Media Controller RFC:
> - Bus and data format negotiation (addresses open issue #3 of the MC RFC):
> - Support for video timings at the input/output interface (aka support for HDTV):
> - Allow bridge drivers to have better control over DVB frontend operations:

> We have some other topics as well (in no particular order):
> - mercurial vs git, how important is backwards compatibility to us?
> - how to do events in V4L?
> - is it possible to create a pool of buffers that we can pass around to
>   various video nodes?
> - others?
> 
> My plan is to use the Wednesday to start with the media controller, make sure
> that everyone understands what it is and what it is not and perhaps look at
> one embedded device to see how well it would work. The afternoon we can look
> at some of the other topics.

Can you plan on a quick overview of the RFCs and in particular how far
along the hardware is and how it is implemented early in the morning?

An hour by hour schedule with when you plan on discussing what would
be very helpful. I find meetings that have too open ended of a
schedule have a tendency to rat-hole ;)

> I hope that on Thursday we can go over the media controller in more detail,
> esp. with regards to other embedded devices, current and (if possible)
> upcoming. 

An overview of the current hardware implementation would be nice on
Wed. It seems to be missing from the RFCs.

Thanks,

	Brandon

Re: LPC v4l-dvb mini-summit agenda

[Hans Verkuil]

On Tuesday 15 September 2009 22:24:41 Brandon Philips wrote:
> On 19:19 Tue 15 Sep 2009, Hans Verkuil wrote:
> > We have a room available all three days, so that makes life easier for us.
> >
> > I assume that most people will want to attend at least the keynote speeches,
> > so I'm scheduling around that.
> 
> Thanks for organizing this. But, I have other priorities and things I
> want to discuss during the conference. I don't think I can attend a
> full three days.

That's no problem.

> > So Wednesday we start at 10:00 after the keynote (except for those
> > attending the audio track) and go on until 15:00 (yes, you are
> > allowed to have lunch :-) ).
> > 
> > Thursday we can start at 9:00 until 16:00.
> 
> I wish I had seen this sooner so we could have done something like the
> Networking folks and met while LinuxCon was going on instead. I
> thought the V4L meetup was going to be a regular BoF.

I'll actually attend LinuxCon as well, so we can talk then as well.

> > Friday starts with a V4L2 BoF followed by two v4l presentations, so
> > we will only have a session from 13:30 - 16:00. I suggest we use
> > that to wrap up.
> 
> After dicussing this a bit Hans and I cut it down to a single 45
> minute slot with each of us doing a 20 or so minutes.

Good to know.
 
> > The main discussion points are these RFCs:
> > 
> > - V2.1 Media Controller RFC:
> > - Bus and data format negotiation (addresses open issue #3 of the MC RFC):
> > - Support for video timings at the input/output interface (aka support for HDTV):
> > - Allow bridge drivers to have better control over DVB frontend operations:
> 
> > We have some other topics as well (in no particular order):
> > - mercurial vs git, how important is backwards compatibility to us?
> > - how to do events in V4L?
> > - is it possible to create a pool of buffers that we can pass around to
> >   various video nodes?
> > - others?
> > 
> > My plan is to use the Wednesday to start with the media controller, make sure
> > that everyone understands what it is and what it is not and perhaps look at
> > one embedded device to see how well it would work. The afternoon we can look
> > at some of the other topics.
> 
> Can you plan on a quick overview of the RFCs and in particular how far
> along the hardware is and how it is implemented early in the morning?

Yes, it will start with an overview of the RFCs and their status.

> An hour by hour schedule with when you plan on discussing what would
> be very helpful. I find meetings that have too open ended of a
> schedule have a tendency to rat-hole ;)

The media controller discussions are hard to plan, but on Wednesday after
lunch I plan on discussing the HDTV timings proposal. That's a high prio
feature that we need to add soon and it does not depend on the media
controller. There are a few open issues there, in particular when it relates
to sensors.

> > I hope that on Thursday we can go over the media controller in more detail,
> > esp. with regards to other embedded devices, current and (if possible)
> > upcoming. 
> 
> An overview of the current hardware implementation would be nice on
> Wed. It seems to be missing from the RFCs.

We should have something on that as well on Wednesday.

Regards,

	Hans

> 
> Thanks,
> 
> 	Brandon
> --
> To unsubscribe from this list: send the line "unsubscribe linux-media" in
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> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 
> 



-- 
Hans Verkuil - video4linux developer - sponsored by TANDBERG Telecom

RE: LPC v4l-dvb mini-summit agenda

[Hiremath, Vaibhav]

> -----Original Message-----
> From: linux-media-owner@vger.kernel.org [mailto:linux-media-
> owner@vger.kernel.org] On Behalf Of Hans Verkuil
> Sent: Tuesday, September 15, 2009 10:50 PM
> To: linux-media@vger.kernel.org
> Cc: Andy Walls; Steven Toth; Mike Krufky; Devin Heitmueller;
> Hiremath, Vaibhav; Karicheri, Muralidharan; Iovescu, Magdalena;
> Aguirre Rodriguez, Sergio Alberto; Sakari Ailus; Laurent Pinchart;
> Hans de Goede; Brandon Philips
> Subject: LPC v4l-dvb mini-summit agenda
> 
> Hi guys,
> 
> I've tried to put together an initial agenda of points to discuss
> during
> the mini-summit.
> 
> We have a room available all three days, so that makes life easier
> for us.
> 
> I assume that most people will want to attend at least the keynote
> speeches,
> so I'm scheduling around that.
> 
> So Wednesday we start at 10:00 after the keynote (except for those
> attending
> the audio track) and go on until 15:00 (yes, you are allowed to have
> lunch :-) ).
> 
> Thursday we can start at 9:00 until 16:00.
> 
> Friday starts with a V4L2 BoF followed by two v4l presentations, so
> we will
> only have a session from 13:30 - 16:00. I suggest we use that to
> wrap up.
> 
> Of course, if someone is not directly involved in a particular
> topic, then
> it's no problem to go to another session. But there is a lot to
> cover, so we
> should try to stay focused. It is of course possible to continue in
> smaller
> groups afterwards. As I said, we have the room to ourselves.
> 
> The main discussion points are these RFCs:
> 
> - V2.1 Media Controller RFC:
> http://www.mail-archive.com/linux-
> media%40vger.kernel.org/msg09636.html
> 
> - Bus and data format negotiation (addresses open issue #3 of the MC
> RFC):
> http://www.mail-archive.com/linux-
> media%40vger.kernel.org/msg09644.html
> 
> - Support for video timings at the input/output interface (aka
> support for HDTV):
> http://www.mail-archive.com/davinci-linux-open-
> source%40linux.davincidsp.com/msg14814.html
> 
> - Allow bridge drivers to have better control over DVB frontend
> operations:
> http://www.mail-archive.com/linux-
> media%40vger.kernel.org/msg09183.html
> 
> We have some other topics as well (in no particular order):
> 
> - mercurial vs git, how important is backwards compatibility to us?
> - how to do events in V4L?
> - is it possible to create a pool of buffers that we can pass around
> to
>   various video nodes?
> - others?
> 
> My plan is to use the Wednesday to start with the media controller,
> make sure
> that everyone understands what it is and what it is not and perhaps
> look at
> one embedded device to see how well it would work. 

[Hiremath, Vaibhav] I believe OMAP should be a good candidate here.

Thanks,
Vaibhav
> The afternoon we
> can look
> at some of the other topics.
> 
> I hope that on Thursday we can go over the media controller in more
> detail,
> esp. with regards to other embedded devices, current and (if
> possible)
> upcoming. Depending on the time we might look at some other topics
> in the
> afternoon.
> 
> Friday is mostly wrap up and a discussion of any remaining topics.
> 
> I'm pretty sure that this plan will not survive reality, but at
> least it is
> a start.
> 
> I have the following people on my list for this mini-summit.
> 
> Sergio Alberto Aguirre Rodriguez
> Sakari Ailus
> Hans de Goede
> Devin Heitmueller
> Vaibhav Hiremath
> Magdalena Iovescu
> Muralidharan Karicheri
> Mike Krufky
> Brandon Philips
> Laurent Pinchart
> Steven Toth
> Andy Walls
> 
> Let me know if I missed someone, or if you are on the list, but
> won't be
> attending this mini-summit.
> 
> Note that no final decisions will be taken during this summit. That
> can only
> happen on the list. The main purpose is to look at these RFCs and
> try to
> shoot holes in them. Are they generic enough? Powerful enough? Will
> they
> support the hardware that I know of? What if anything is missed?
> Etc, etc.
> 
> Regards,
> 
> 	Hans
> 
> --
> Hans Verkuil - video4linux developer - sponsored by TANDBERG Telecom
> --
> To unsubscribe from this list: send the line "unsubscribe linux-
> media" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html